hi, I've actually bought a used FC that has been in a car and tuned to 230rwkw with stock everything except cat back 3" exhaust. I have a full engine rebuild with ARC air box. full 3" to 3.5" exhaust will it be ok to plug it straight up or too much of a risk???
Also, i have an AVCR installed but never turned on, can i just use that boost kit and harness for the FC??? Or get it tuned straight away???
Just wanna be sure before i do anything??
Cheers in advance..